Drain



April 7, 19.25. 1,532,897

' J. HIRSHSTEIN DRAIN v Filed' July 1oI 1922 Patnted,Apr. 7, 14925.

JOSEPH HIRSHSTEIN, 0F CLEVELAND, OHIO.'

mum.

Application led J'uly 10, 1922. Serial No. 574,005.

Be it known that I, JOSEPH HrRsHs'rEIN, a citizen of the United States of America, residing at the city of Cleveland, county of Cuyahoga, State of Ohio, United States of America, have invented a certain new and useful Drain, of which the following is such a full, clear, and exact description as will enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specificatlon.

M invention relates to drains for roofs or dbors and particularly to means for forming water tight connection between the drain body and a sheet of water proofing material connected therewith which mate# rial is usually referred to in the art as a flashing.

The object of the invention is to rovide clamping means for connecting the ashing to the drain which will be simple and effective and will avoid the use of fasteners,

solder or cementing compounds and the necessity of making any holes through the flashing In the accompanying drawmgs, Figure l isa vertical cross section of one type of a drain apparatus embodying my 1nvent1on;,

Figure 2 is a side elevation; and Figure 3 an enlarged detail view of the clamping members and associated parts.` The drain illustrated is of what is'known as the drain dopble drainage type in which the drain body lis provided with an adjustable head 2 adapted to be positioned flush with the floor or roof level (indicated by dotted lines 8) and with a seepage collecting pan or receptacle 3 surrounding the drain body and adapted to discharge into the drain through e -the openings. 9 any liquid which may collected by the pan. This pan collects liquid which may leak around the outside of the drain and between it and the floor material-and in order to protect against'cracks or leakage through.- the floor in any portion of the surface in which the drain is situated it is a common practice in various locations,

the floor and the finish surface applied on top of the flashing..

As applied to the particular type of drain shown, vmy invention is directed to means for conveniently and effectively forming a vWater tight joint between the flashing and the' 'drainage pan or flange 3 and without the use of a plurality of bolts or screws and without the necessity of making holes l.through this flashing or making soldered orl cement connection between the flashing and the drain. ,As shown in the drawing, the upper surface ofthe pan or flange 3 is provided with a horizontal seat for the edge of the flashing and `above thi/s seat is a clamping ring 5 for holding the flashing firmly in engagement therewith.l This clamping ring is forced into clamping position and held in such position by means of pivoted wedge members 6 which are sup- `ported on bolts or pivots 7 threaded into the drain body, this body being preferably thickened or' reinforced, as shown, at the point where the bolt enters; wedging and locking members 6, of which two are shown but of which there may be any desired number, have a portion of their surfaces curved and the relation of this curve to the pivot is such that the turning vof the members on their pivots -in one direction brings a portion of their surfaces into 'clamping relation with the clamping ring 5 and by a toggle wedging action apply substantial pressure to the clamping ring. These wedging and lockingv members 6 are preferably formed with aflat surface where- The pivoted y they can be driven into firm wedging f intentional release; of the wedge members.

Of course, when these drainsl are installed in cement this material would also prevent any turning of the members 6 on their pivots and consequent reduction of the wed 'ng pressure. As indicated in Figure 3 w ich show the wedges in unlocked position, the wedging surfaces of the members 6 are Sym- "metrically positioned so that if the clamping ring 5 should slip Y circumferentially while one wedging member is being driven to wedging position such slipping 'would tend to increase the /pressure ofother wedging members upon the ring. The

clam ing ring is preferably in one piece i and y 'using a suitable number of wedge members 6 depending upon the diameter of the ring, it will be apparent' that a firm waterproof oint' may be readily formed between the ashing and the drain.

Having fully described lmy invention what I claim as new and desire to secure by l Letters Patent of the United States is:

the drain, anda wedging member carriedA by the drain and adapted to sforce 4the clamping member into clamping position.

3. In a device of the class described, the combination with a drain, a sheet of water roof material, a clamping member vfor orming a water tight connection between said material and the drain bypressure, a

wedging member carried by the drain and adapted to exert a wedging action'on the clamping member to force it into clamping spaced pivoted `wedging members carried by the drain and having surfaces adapted to exert wedging pressure on the clamping ring and to lock it in clamping position as the -resultl o'f .frictional engagement between the connecting parts.

I 5. In a deviceof the ,class described, the combinationof a drain, a sheet of water prooling material, a clamping ring for holding said material inengagement with the drain, pivotally supported Wed ing members for exerting pressure on vsai clamping ring, said wedging members having bearing surfaces whose relation to the.; pivots and ring is such that slipping ofthe ring'in bringing one member into wedging position will'inclease the wedging effect of the other wedging member or members.

In testimony whereof, I have hereunto set my hand and affixed my seal.

JOSEPH HIRSHSTEIN.' [n .sa

1engagement;with the seat, a plurality of 

